Fuel-controlling means



Feb. 26, 1923.

H. E. HOLBROOK FUEL CONTROLLING MEANS Filed Aug. 19, 1918 4 Illa M a all- 1.3-.

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the following description, in connection with the accompanying drawings, is a specification, like char cters on the drawings representing like parts.

This inventionrelates to fuel controlling means, for internal combustion engines, and its object is to provide an improved construction :liorthis purpose.

In the drawings of the embodiment of my invention illustrated and described herein,

Fig. 1 is a side elevation of my invention as installed on an internal combustion engine of conventional construction;

Fig.2, a plan of the valve, showing in dotted lines the spindle in closed position:

Fig. 3, a vertical longitudinal section of the valve on the line 3-3, Fig. 2;

Fig. 4., a view similar to Fig. 2, showing the spindle in section on the line Fig. 3, and as open in relation to the vaporintake Fig. 5, a slmilar view, showing the spindle open to both the vapor intake and priming passages; i

Fig. 6, a similar view showing the spindle open only to the priming passage.

It is commonly recognized that a small amount of moisture contained in the mixture ofair and gas ordinarily supplied to an in-, ternal combustion gasoline engine will not only cause the engine to run more quietly,

but it will also act to prevent the formation of carbon on the cylinder walls and the pistons. The moisture also improves the ex.- plosive quality of the mixture, giving greater power. 1

Referring first to Figs. 1 to 6 inclusive, my novel invention comprises a vapor intake pipe 1.. preferably connected to the over flow pipe 2, of the radiator 3, intermediate its ends, and running to a valve 4:, which may be positioned at any convenient point on the dash 5.

A second vapor outlet pipe 6, connects the valve 4 with the manifold 7 of the engine 8. Obviously these pipes may be carried to any part of the dash and on either side of the accordip use.

en ine that may be most convenient O to. the partnuiar construction The pipe 1, for engines of small size, is referably 5; inch diameter, while the pipe 6, for reasons whichwill appear presently, is prefer-ably somewhat larger as. for instance ,5;

of an inch. These pipes may be conveniently connected to both the radiator overflow pipe and the valve by the usual solder-less coinbns.

I invention comprises also a novel form of valve for controlling the supply oi vapor which, shown herein, Figs. 2 3, comprises a body 4-, of any preferred form, herein substantially rectangular or block like and of convenient size. The body l has a lateral vapor inlet passage 9, into the outer endoi which. is threaded the connection 10 upon the end of the vapor inlet pipe 1. The body is a soprovided with a similar vapor outlet iiassage 11 which may be connected to the outlet pipefi in the same manner by a connection 12.

The passages 9, 11, Figs. 2, 3, both enter a main longitudinal connecting passage 13,

' which passage takes an upward turn at one end, and opens to the atmosphere providing a priming opening 14. n

For establishing communication between these several passages 9,11, 1.3, at will, Figs. 2, El, and in any desired combination, 1 provide a novel universal valve spindle 15. This spindle is, herein hollow, seated in a suit ably shaped opening in the body 4, at the junetion of the passages Q. 13, forming a mining chamber 15. wherein the v poradmitted through port 9 and the priming charge and air, or either of them, admitted through the port 14 may be mixed before it is discharged through port 11 of the manifold and is provided with a knurled edge 16 at its upper end for convenient manipulation. The valve may be retained onits seat in the body 4: by any convenient means as for instance narrow annular slot 17, to

which is positioned a linger 1.8, formed, as

of vapor into the manifold 7 nor the use of the priming opening 14: which will be referred to presently.

When it is desired to introduce vapor into themanifold, the valve is turned to position shown in Fig. at, where it will be seen the port 21 registers with the passage 9, leading he desired.

When it is desired to not'only draw vapor from the radiator, but, for any reason, as

for instance when running on level ground or on a long down grade, it is also desirable to draw more vapor from the atmosphere and lean the n'iixture, then the spindle will be positioned as shown in 5, where the port 20 of the spindle registers with the passage 9 and the port 21 registers with the pas- 13, and establishes communicat on between the priming opening 1 while the passage 22 registers with the passage 13 to the vapor outl. pipe thus providing both vapor and air in any desired quantity.

lVhen, again, it is desired sin'iply to use the priming opening it for the introduction oi? a charge of priming liquid to start the engine, such as gasoline or ether, then the spindle will. be positioned as shown in Fig. (3, that whilethe ports 21, 22, will establish communication between the priming opening A and the vapor outlet passage 13, the vapor inlet passage 9 will be closed. When in this position the priming liquid will be drawn throiwh the valve into the manifold by the pistons in the usual manner.

In some cases the moisture has been su plied by drawing air through a body of wa ter thus saturating it with moisture and then feeding it into the manifold or intake pipe or the engine, while in other casesthe vapor has been obtained from the radiator which is usually warm after the car has been driven a few miles, and soon thereafter hecomesso hot as to supply a vapor continuously. Sometimes also an auxiliary steam forming device is used.

li hen taking the vapor from the radiator direct, one meets the objection that'iii the radiator is full there is danger that water instead 01" vapor will be drawn from the vapor intake pipe and supplied to the con bustible charge. On the other hand if the vapor inlet pipe is connected to the outer end oi the overflow plpe from the radiator l have discovered that more air is drawn lj li L.

from the atmosphere than vapor from the radiator, so that the desired amount of moisture is not alwavs obtained.

1 have discovered that there are advantages over either of the above noted methods oi obtaining moisture which may be availed by taking the vapor from the overflow radiator pipe intermediate its ends. so doing, the vapor which seeks to escape from the radia 301' t lIOUQjll the overflow pipe is intercepted before it reaches the outlet air. the vapor not formed, owing to the fact that th 'athator has not become warm, or owing the fact that the cold weather pos ihly prevent formation of vapor, p air ran be obtained if desired tl'irough the overflow pipe.

li hile lTl ave disclosed herein one embodiment of in ention, it will be obvious that many changes in detail may be made therein without departing iirom the spirit oi my invention and all within the scope ofthe appended claims.

Claims:

1. A. valve having a body, a fuel and air inlet priming port in the upper face thereof, vapor inlet and outlet ports on one'side thereof, hollow valve spindle seated in said body and through the top-thereof, a mixing chamber in said valve spindle, ports in said valve spindl registering with the fuel inlet and vapor inlet and vapor outlet ports, for effecting selective connections between the fuel and inlet and vapor inlet ports, or either or them, on the one hand, and the vapor outlet port on the other hand, a locking groove on the outer; wall of's'aid valve spindle and a locking; linger on the body and seized in said groove.

2. A valve comprising the body t, having the fuel and air inlet portld on its upper face, vapor inlet port 9 and vapor outlet port 11 on one side of the body, a'hollow valve spindl 13 in the upper face of the l c with a mixing;- chamber 15 -therein,

the chamber 1.5 being larger than sectional area oi: said ports and alspindle the or wa connectingat least two of the ports, said ports also repiste inp; with ports 9, 11

it i lin the valve boo to permit selective connections between he ports 1% and 9 or either oi them on the one hand, and port 11 on the other hand. a groove 17in the outer ll of t 1e spindle and a valve spindle l ocle linger 1L on the upper 'taceoi the body 1 l seated in said groove; I

in testimony whereof, I have signed mv this specification.

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20, 21 and 22 in the wall of said valve 

